Useful Links

London Low Emission Zone: https://tfl.gov.uk/modes/driving/low-emission-zone

London Ultra Low Emission Zone (ULEZ): https://tfl.gov.uk/modes/driving/ultra-low-emission-zone

London Low Emission Zone for Non-Road Mobile Machinery (NRMM): http://nrmm.london/

Dieselnet: https://www.dieselnet.com/

Air Quality News: https://www.airqualitynews.com/

Full list of active European Low Emission Zones: https://urbanaccessregulations.eu/countries-mainmenu-147